Ten > Compound Interest

Asked by Basanta · 2 years ago

If the semi-annual compound interest on Rs 8000 for $1\rm \frac {1}{2}$ years is Rs 2648. 

1. Find the interest rate. 
2. What is the simple interest of the sum at the same rate and time?
3. If the interest rate is reduced to half, then what happens to the simple interest at the same time?